# X_TEST_FACTORY_NOT_PERSISTED

## Means

`create()` ran with no persister installed

## Typical cause

nothing was attempted — distinct from an insert that failed

## Fix

`usePersister({ insert: (table, row) => repoFor(table).insert(row) })` in the test preload — or `build()` for an in-memory row that needs no database

[Testing](/error-codes#testing)